root/trunk/client/revimage/image_swap.c

/*
 *  $Id$
 */
/*
 *  Linbox Rescue Server
 *  Copyright (C) 2002-2005 Linbox FAS, Free & Alter Soft
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "config.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

#include "compress.h"
#include "client.h"

char info1[32], info2[32];

void
check_signature (FILE * f, PARAMS * p)
{
  char dum[4096];

  fread (dum, 4096, 1, f);

  if (strncmp (dum + 4096 - 10, "SWAP-SPACE", 10) == 0)
    return;
  if (strncmp (dum + 4096 - 10, "SWAPSPACE2", 10) == 0)
    return;

  exit (1);
}

void
allocated_sectors (PARAMS * p)
{
  int i, used;

  p->bitmap = (unsigned char *) calloc (8, 1);
  p->bitmaplg = 8;

  p->nb_sect = 8;
  used = 8;

  for (i = 0; i < 8; i++)
    p->bitmap[i] = 0xFF;

  sprintf(info1, "%u", p->nb_sect);
  sprintf(info2, "%u", used);
  print_sect_info(p->nb_sect, used);
}

/*  */
int main (int argc, char *argv[])
{
  FILE *fi;
  PARAMS params;
  int fd;

  if (argc != 3)
    {
      fprintf (stderr, "Usage : image_swap [device] [image prefix name]\n");
      exit (1);
    }

  // Just check for SWAP-SPACE or SWAPSPACE2

  fi = fopen (argv[1], "rb");
  check_signature (fi, &params);
  allocated_sectors (&params);
  fclose (fi);

  if (argv[2][0] == '?')
    exit (0);

  // Compress now
  //

  ui_send("init_backup", 5, argv[1], argv[2], info1, info2, argv[0]);
  fd = open (argv[1], O_RDONLY);
  compress_volume (fd, argv[2], &params, "SWAP=1");
  close (fd);
  
  return 0;
}